If you are using the optional extras, gently cook the garlic, leeks and anchovies in the olive oil very gently until they are quite soft – 10–15 minutes.

Cook the pasta in plenty of well salted boiling water.
Steam the green till quite soft.
Drain the pasta, retaining a bit of the cooking water. Mix the steamed greens and retained cooking water into the pasta, season well and dress very generously with the oil.
If you are using the optional extras mix them in at the same time. Eat!!